var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var session = require('express-session');
var bodyParser = require('body-parser');
var settings = require('./setting.js');
var MongoStore = require('connect-mongo')(session);
var mongoose = require('mongoose');
var crypto = require('crypto');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
// middlewares
app.use(favicon(path.join(__dirname,'public','images','favicon.png')), {maxAge:0});
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded());
app.use(cookieParser());
app.use(session({
    secret: settings.cookieSecret,
    key: settings.db,
    cookie: {maxAge: 1000 * 60 * 60 * 24 * 30},//30 days
    store: new MongoStore({
        db: settings.db
    })
}));
app.use(express.static(path.join(__dirname, 'public')));

// database setup
mongoose.connect('mongodb://localhost/qd');

// handle routes in a seperated file
require('./route.js')(app);


/// catch 404 and forward to error handler
app.use(function(req, res, next) {
    var err = new Error('Not Found');
    err.status = 404;
    next(err);
});

/// error handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
    app.use(function(err, req, res, next) {
        res.status(err.status || 500);
        res.render('error', {
            message: err.message,
            error: err
        });
    });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
        message: err.message,
        error: {}
    });
});

var server = app.listen(3000, function(){
	console.log("listening on 3000 port");
});

module.exports = app;
